Excretion in Humans
Biology: Cambridge International GCSE Supplement, topic 13.1.1
Excretion in Humans
Excretion refers to waste removal and water balance. Waste products, such as urea and carbon dioxide, are toxic and need to be removed from the body to prevent damage. These waste products are excreted by different organs.
Urea
- Urea is excreted by the kidneys, along with excess water and salts.
Carbon dioxide
- Carbon dioxide is excreted through the lungs.
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